Home » Departments » Engineering » Transportation » Residential Traffic Safety » Alley Speed Bump Program

Program Description Alleys are a major component of the street system within residential areas.  Because of various design constraints surrounding residential alleys (i.e., fences, building lines, trees and shrubs), speeds in excess of 10 mph can present safety concerns.  Because of this, the Alley Speed Bump Program was instituted in 1977 to address speeding concerns in alleyways.  Program Process The process may be initiated by any City of Plano resident who may be experiencing a speeding problem in his/her alley or alley section.  The resident initiates the program by calling the Transportation Engineering Division at (972) 941-7151. The process requires that a petition be circulated through the proposed area(s) that will be affected by the speed bump installation.  One hundred percent of the residences along the proposed alley section should be notified and a successful petition must have 67% of the residences in the survey area in favor of the installation.  In addition, the residents will be required to pay for 2/3 the cost of the installation. What Will Happen? After being contacted by the neighborhood sponsor, the Transportation Engineering Division will do the following: Print a map copy of the area that includes the alley section Check the alley to determine the placement locations of proposed alley bump Determine the petition area Estimate the installation cost All of the information, including the area map, petition area, cost, detail of a typical alley speed bump installation, and petition form, will be mailed to the sponsor. The sponsor has 60 days to circulate the survey, gather the needed signatures, and submit the requires amount to cover  installation costs. Once the process has been completed, a letter will be sent to the homes in the petition area advising of the planned alley bump installation.  What If I Want Alley Bumps Removed? Alley bump removal uses the same petition and survey area process as installations. Existing bumps must have been  in place for at least one (1) year before a removal process may be initiated. Please contact the Transportation Engineering Division at (972) 941-7151 if you have any questions or need more information on the Alley Speed Bump Program.